The means and mean absolute deviations of the individual times of members of two relay swim teams are shown in the table below. Means and Mean Absolute Deviations of
Individual Times of Members of 4 times 200 meter Relay Swim Teams

Team A
Team B
Mean
127.9 s
127.4 s
Mean Absolute Deviation

0.26 s

0.23 s
The difference of the means is found and then compared to each of the mean absolute deviations. Which is true?
The difference between the mean times is about equal to the mean absolute deviation of the data sets.
The difference between the mean times is about 2 times the mean absolute deviation of the data sets.
The difference between the mean times is about 5 times the mean absolute deviation of the data sets.
The difference between the mean times is about 16 times the mean absolute deviation of the data sets.

solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.

2 over 5 and 4 over 15

don’t know last one sorry

step-by-step explanation:

the answer would be a 24

step-by-step explanation:

c=2πr=2·π·3=24